Results 191 to 200 of about 132,722 (276)

Proteolytic control of mitochondrial protein translocases

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract Mitochondria are essential organelles that drive numerous cellular processes, including energy metabolism, ion homeostasis, and programmed cell death. This functional versatility relies on a highly dynamic proteome whose composition is continuously remodeled to meet changing cellular and environmental demands.
Lara Kroczek, Thomas Langer
wiley   +1 more source

Geopropolis from <i>Melipona orbignyi</i> and <i>Melipona quadrifasciata anthidioides</i> Enhances Oxidative Stress Resistance and Lifespan in <i>Caenorhabditis elegans</i>. [PDF]

open access: yesPharmaceuticals (Basel)
Dos Santos HF   +10 more
europepmc   +1 more source

Structural and functional insights into TBC1D17 highlight the importance of the previously uncharacterized Rab‐binding domain

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract TBC (Tre2/Bub2/Cdc16) domain‐containing proteins constitute the widespread family of GTPase‐activating proteins (GAPs). They interact with the Rab superfamily of small GTPases, stimulate GTP hydrolysis, and regulate vesicle trafficking. TBC1D17, involved in Shiga toxin trafficking, autophagy and glucose metabolism regulation, constitutes an ...
Dominika Nielipińska   +6 more
wiley   +1 more source

Quality control of protein import into mammalian mitochondria

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract Mitochondrial function depends on the continuous import of hundreds of nuclear‐encoded proteins. Targeting and translocation of mitochondrial proteins is a multistep process that is inherently vulnerable to defects in cytosolic quality control systems as well as perturbations in mitochondrial protein import machinery and organelle function ...
Madeleine Goldstein   +2 more
wiley   +1 more source

Cryo‐EM reveals ArnA contamination during purification of a ciliary protein complex

open access: yesActa Crystallographica Section D, Volume 82, Issue 5, Page 404-410, May 2026.
ArnA contamination was independently observed during the purification of a soluble, low‐yield protein complex, leading to an unintended 3.23 Å resolution cryo‐EM structure. This work broadens recent findings and highlights ArnA as a recurrent His‐tag‐associated contaminant in Escherichia coli purification workflows.Endogenous Escherichia coli proteins ...
Xuguang Jiang, Masahide Kikkawa
wiley   +1 more source

Fasting and Caloric Restriction Activate an ADIOL‐NHR‐91‐Kynurenine Pathway Signaling Axis to Promote Healthspan

open access: yesAging Cell, Volume 25, Issue 5, May 2026.
The steroid hormone ADIOL emerges as a key mediator of fasting–and caloric restriction–induced healthspan benefits in C. elegans. These regimens activate ADIOL production, which acts through the estrogen receptor β homolog NHR‐91 to reduce neural kynurenic acid levels and enhance healthspan independently of lifespan. ADIOL supplementation, even late in
Ana Guijarro‐Hernández   +6 more
wiley   +1 more source

Long‐Term Stress Adaptation as a Highly‐Conserved Key Factor in Yeast Aging

open access: yesAging Cell, Volume 25, Issue 5, May 2026.
This study shows that long‐term, but not short‐term, stress exposure triggers molecular changes in yeast that mirror established hallmarks of aging, including altered proteostasis, epigenetic shifts, and reduced lifespan. These changes are reversible upon stress removal, and the genes involved are conserved across all domains of life. ABSTRACT Aging is
Yanzhuo Kong   +7 more
wiley   +1 more source

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